Finding the Fourth Proportional to 7,125,648.63, 9,841,567.25 and 4,689,136.98
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Solution
The fourth proportional to 7,125,648.63, 9,841,567.25 and 4,689,136.98 is: 6,476,386.83
Step by Step Solution
- Step 1: Write the proportion equation
7,125,648.63 : 9,841,567.25 = 4,689,136.98 : x - Step 2: Convert to fraction form
7,125,648.63/9,841,567.25 = 4,689,136.98/x - Step 3: Cross multiply
7,125,648.63x = 9,841,567.25 × 4,689,136.98 - Step 4: Simplify right side
7,125,648.63x = 46,148,456,933,131.91 - Step 5: Solve for x
x = 46,148,456,933,131.91/7,125,648.63 - Step 6: Final answer
x = 6,476,386.83
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.